Smoke-consumer



(No Modem" Y 2 sheets-sheer, 1.

T. GUNNING. SMOKE GONSUMBB..

No. 514,457'. n Patented Peb. 13, 1894.

WITNESSES I'NVENTDR 5-, #HMM d@ nel run-loma. umowrwms euMPAnY.

tamtam. o. c.

2 sheets-'sheen 2.

(No Model.)

vT. GUNNING.

SMOKB'GONSUMBR. v No. 514,457. Patented Feb. 13,1894.

UNITED STATES PATENT OFFICE.

THOMAS GUNNING, OF PITTSBURG, PENSYLVANIA.

SMOKE-CONSUMER.

SPEGIFICATION forming part of Letters Patent No. 514,457, dated February13, 1894.

l Application filed March 6, 1893 Serial No. 464,647. (No model.)

l To all whom may concern: l

Beit known that I, THOMAS GUNNING, of

Pittsburg, in the county of Allegheny and consumers wherein airisforcedin over the i Vboiler located over the furnacedoor.

1 Lpipes are screwed into the casing, and to their projecting outer`ends arejoined the globu- "3Q i u nected with each other by pipes 5.

gratos to combine with and consume the smoke, and it consists in animproved construction, whereby air entering at the sides is `heated byexposed side-pipes and forced in at the front of the furnace.

l In the drawings, in which similar numerals v' l I' `indicate likeparts, 2 represents the front wall 125 of the setting, through whichpass the airinlet pipes 3, there being one pipe for each These larreservoirs or collectors 4i, which are confrom the end collectors arethebent pipes' 6, "which are embedded inthe inner sides of the `uiurmice`walls, as shown, and are partially i of the setting and are providedwith the mufjexposed to the heat of the furnaces.

p These pipes pass throughapcrtu res in the side-Walls i @ding-device'7, shown `in Fig; at. This device consists simply of a box orreceptaclesecured to the end of the pipe and having a slotin its sidesothat the entering air makes an angu- `lar turnbefore entering thepipe. l have found i vthat this device is fully as veffective as thecomplicated diaphragm muiiiers now employed, while it is much simplerand cheaper. Through the outer portions of the reservoirs et pass theinjector-pipes 8, which are joined by T-connections to the steam-pipe 9passing in front of the boilers. y

To increase the supply of air through the -pipes `6, l may usesteam-injector pipes 10 Leading' passing through the outer ends ofthemutd ers, and to bring a further supply of heated air t0 the centralboilers, Where there are several boilers in the battery, l employ thevertical pipes l', having T-connections with the connecting pipes 5.These pipes l lead up into the breeching of the boiler, and at theirupper ends are connected to the inlet pipes l2 passing through theuptake and having at their outer ends suitable rotatory dampers toregulate the .amountk of entering air.

The action ofthe device is as followsz-The air entering through themuiiiers at the ends of the pipes 6, is heated by the action of the dameupon the exposed portions ofthe pipes, rand thence passing to thereservoirs is forced in over the dre, and the heated air uniting withthe smoke, consumes the same. Additional air is drawn down through thevertical supply pipes if necessary, being heated in transit by the wasteproducts of combustion, and supplied to the reservoirs. do away with themost of the noise occasioned by the entering air, and the amount of airmay be increased by-turning steam into the injectors lO passing intosaid muflers.l

I claim as my iuventionl. Ajboiler' furnacehavin'g a pipe partiallyyembedded inits side wail and having an open `end projectingtherethrough, an air pipe leading through its front casing above thegrate, an injector in the air pipe, and a connection 'between said pipeand the pipe in the side wall; substantially as described.

2. A boiler having a front reservoir pro- The mu fders vided with `anair pipe projecting through its Y front casing, a vertical pipeextending therefrom up throughy the breechin g, and provided with anextension projecting through the side of the uptake and opening into theatmosphere; substantially as described.

3. A boiler having an air pipe partially einl bedded in its side Wall,said pipe opening out- 'wardly through the side wall and being'connectedto a reservorin front of the furnace, and an air pipe leading from saidyreservoir into the space above the grate; substantially as described.

v 4. A boiler having an air pipe partially emlroo bedded in itssidewall, said pipe opening outi wardly through the side wall and being@011 nected to a reservoir in front of the furnace, an air pipe leadingfrom said reservoir into the space above the grate, and an injectorpassing into thel frontair pipe; substantially as described.

5. A battery of boilers having air pipes partially embedded in the sideWalls, air pipes leading through the front casing and connected to theside pipes, vertical pipes also 1o connected to the front air pipes,leading up through the breeching and passing through the side of theuptake, andinjeetolsentermg the front air pipes; substantially asdescribed. l

In testimony whereof l have hereunto set my hand.

THOMAS GUN N ING.

Witnesses:

W. B. CORWIN, H. M. OORWIN.

